OLD SINGLE 12 SHOTGUN WITH WEAR DUE TO AGE. "The New White Powder Wonder" was a trade name used on inexpensive single-shot shotguns sold in the late 1800s and early 1900s through retailers such as mail-order catalogs. A 12-gauge marked "The New White Powder Wonder" is usually not the actual manufacturer's model name; the same trade name was applied to guns made by several manufacturers, including J. Stevens Arms & Tool Company, Crescent Fire Arms Company, W.H. Davenport Arms Company, and Meriden Fire Arms Company.